The Body Speaks. We Listen.
A proprietary smart ring that captures what fitness trackers miss. Mere Pulse reads arterial pulse waveforms every 20 minutes, turning continuous biometric data into actionable health intelligence. Not a step counter. A clinical-grade sensor on your finger.
Why Finger, Not Wrist.
The finger is not a fashion choice. It is the superior PPG signal site. Higher capillary density, stronger arterial pulse, less motion noise. Every clinical pulse oximeter in every hospital uses the fingertip for a reason.
99.3% Heart Rate Accuracy
The palmar digital arteries in the finger sit closer to the surface than the radial artery at the wrist. PPG sensors on the finger read a stronger, cleaner arterial pulse signal with less motion artifact and less noise from tendons, bones, and loose skin.
Gold-Standard SpO₂ Site
Pulse oximeters have used the fingertip for decades because capillary density there is unmatched. Finger-based SpO₂ readings are the clinical reference standard. Moving the sensor to the wrist was always a compromise, not an improvement.
49% YoY Ring Growth
Smart rings are growing at 49% year over year, compared to 6% for smartwatches. 75% of fitness tracker revenue now comes from ring-form devices. Consumers are choosing smaller, always-on form factors that disappear into daily life.
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YoY ring market growth
99.3%
Heart rate accuracy
75%
Tracker revenue now rings
Built for Clinical Data, Priced for Consumers.
Mere Pulse is not a fitness tracker with a wellness label. It is a tri-wavelength PPG sensor array engineered to capture the biometric signals that TCM practitioners have read for centuries. Heart rate, heart rate variability, blood oxygen saturation, and autonomic nervous system balance, all from a 20-minute waveform capture cycle.
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Price Point
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Contribution Margin
Sensor
Tri-wavelength PPG sensor array
Biometrics
HR, HRV, SpO₂, autonomic balance
Capture Interval
20-minute waveform capture
Price Point
$299
Contribution Margin
$152 to $160
COGS
$92
Metric-Gated. Not Calendar-Gated.
Pulse does not ship on a predetermined timeline. It ships when the subscription business proves it can support hardware. This is deliberate discipline, not delay. The ring launches only when the foundation is strong enough to sustain it.
Pulse is intentionally excluded from the 12-month financial forecast. It is not a revenue assumption. It is a revenue accelerant that activates when the core business earns it.
All four gates must be cleared
Subscription MRR
Sustained above $150K for two consecutive months
Monthly Churn
5% or better for two consecutive months
Support Volume
Stable support load without scaling strain
Practitioner Network
Meaningful practitioner count actively prescribing protocols
The Data Moat Compounds.
Every subscriber who pairs NanoActives with Pulse contributes to a growing proprietary dataset linking TCM interventions to measurable biometric outcomes. This is not a static database. It is a living feedback system that gets smarter with every cycle.
Competitors can copy the ring. They can copy the supplements. They cannot copy the dataset that connects the two across thousands of subscribers and millions of waveform captures. Time and subscriber volume are the barriers. Every month widens the gap.
Proprietary Dataset
TCM interventions linked to biometric outcomes
Continuous Capture
20-minute waveform cycles, always learning
Unique Pairing
NanoActives + Pulse creates exclusive signal
Time Barrier
Every cycle widens the competitive gap
Not a Lab Prototype. Production-Ready Discipline.
Spring Xu and the hardware team have moved Mere Pulse from concept through engineering validation to production readiness. This is not a crowdfunding render. It is a manufacturable device with proven cost discipline and regulatory progress.
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COGS Reduction
Spring Xu achieved 22% cost reduction through supply chain optimization and design-for-manufacturing iteration.
FCC + CE Prescan
Regulatory prescan progress for both FCC (US) and CE (EU) certification. Compliance groundwork is underway, not deferred.
Production Validated
Bill of materials locked, manufacturing partners engaged, $92 COGS at initial production volumes.